Eyeglasses, the bicycle, the latex condom...What everyday products or services have changed the world as we know it and solved some of the world’s biggest problems?

For the past month, this question has been posed through a website called Search for the Obvious. From the Internet to the ironing board, users from around the world have flocked to Search for the Obvious to add the products and services that are their ideal of elegant, problem-solving design. A panel of judges from media and design has been evaluating the contributions, and a few of their favorites have been featured on the site. Search for the Obvious is run by Acumen Fund, a nonprofit venture fund investing in entrepreneurial solutions to global poverty.

Today, Search for the Obvious launched a challenge that dares videographers, designers and creatives of all kinds to come up with the craftiest campaign to promote one of the judges’ favorite picks: sewers. Succinctly put: “Sanitation is sexy: make it obvious” – through a video, advertisement, catchy tagline or other form of media, participants are being asked to demonstrate why sanitation is the most important issue currently facing the developing world. (For some inspiration on creative video campaigns, view this video for "The Girl Effect"). Submissions are due by Sunday, November 21, at 11:59 p.m. PT.

The winning video(s) will be featured on our homepage in early December. Winners will also be featured through major media sources, such as Design Observer, and will be recognized by Acumen Fund as champion marketers of the world’s problems and most useful solutions.